Home / 159,182.20-219,670.21-87,560.65

Finding the Fourth Proportional to 159,182.20, 219,670.21 and 87,560.65

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Solution

The fourth proportional to 159,182.20, 219,670.21 and 87,560.65 is: 120,833.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,182.20 : 219,670.21 = 87,560.65 : x
  2. Step 2: Convert to fraction form
    159,182.20/219,670.21 = 87,560.65/x
  3. Step 3: Cross multiply
    159,182.20x = 219,670.21 × 87,560.65
  4. Step 4: Simplify right side
    159,182.20x = 19,234,465,935.43
  5. Step 5: Solve for x
    x = 19,234,465,935.43/159,182.20
  6. Step 6: Final answer
    x = 120,833.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.